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What are my options for Sender ID?

Your Sender ID determines what appears as the "From" name or number when a message is received on your customer’s mobile device. Choosing the right Sender ID can influence trust, engagement, and deliverability.

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With Cellcast, you have four Sender ID options depending on your needs — whether you're looking for two-way messaging, brand recognition, or consistency across campaigns.

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1. Shared Number (Default)

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A rotating mobile number shared across Cellcast users. Ideal for fast setup and general messaging.

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Key Features:

Supports two-way messaging
Instantly available — no setup needed
Great for testing or smaller campaigns
Mobile number will vary

Cost: ✅ Free

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Best for:
✅ New users
✅ One-off campaigns
✅ Reply-required workflows

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2. Dedicated Number

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A unique mobile number assigned to your account — exclusively yours. Enables a consistent experience across all campaigns.

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Key Features:

Supports full two-way SMS
Permanent mobile number
Keeps message threads consistent
Ideal for long-term brand identity

Cost: $18/month *

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Best for:
✅ Support lines
✅ Ongoing customer conversations
✅ Brand consistency

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3. Business Name (Alpha ID)

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Also known as Alphanumeric Sender ID, this allows you to display your brand name (e.g., "Cellcast") instead of a number.

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Key Features:

Increases brand recognition
Maximum 11 characters (no spaces)
One-way only – does not support replies

Cost: Register Free

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Best for:
✅ Promotional or broadcast campaigns
✅ Brand building
✅ Notifications

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Note: Alpha ID is supported in Australia for SMS but is not available for MMS or in every country.

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4. Custom Number (Bring Your Own)

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You can request to use your existing business mobile number as your Sender ID (subject to carrier approval).

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Key Features:

Maintain your current business number
Brand consistency across SMS and calls
Requires verification and provisioning

Cost: register Free
Carrier approval may take up to 5 business days.

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Best for:
✅ Businesses already using a single mobile contact
✅ Local brand presence

Summary Table

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Feature	Shared Number	Dedicated Number	Business Name (Alpha ID)	Custom Number
Supports Replies	✅ Yes	✅ Yes	❌ No	✅ Yes
Shows a Brand Name	❌ No	❌ No	✅ Yes	❌ No
Consistent Display	❌ No	✅ Yes	✅ Yes	✅ Yes
Setup Time	Instant	1–2 days	Instant	3–5 days
Cost	Free	$18/month*	Free	Free

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Which Sender ID Should I Use?

Want replies? → Choose Shared or Dedicated Number
Want branding? → Use Alpha ID or Custom Number
Want long-term customer conversations? → Go with a Dedicated Number
Already using a business mobile? → Consider Custom Number

Still unsure? Our support team is happy to guide you through the best fit for your use case.

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💬 Need Help?

📩 support@cellcast.com
☎️ Call Us
💬 Live Chat via your Cellcast dashboard

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